I can't use Polish characters like ą, ś, ć in Lightroom Book texts. They do not show up if I use standard way, ie Alt+a for ą. When I paste if from other programme (like Word), Lightroom accepts it, but error occures when I try to upload book to Blurb.
Pliszka5E15 messaged me she is unable to reply to her post. She says that, "This time Blurb accepted fonts that where copy/pasted from another editor." So at least for now, that part of the problem is no longer occurring. But the problem with entering Unicode characters directly into the Book module remains.